xorg 6.9.0 mem leak

[Randy Bush]

> I've been running Xorg, firefox, and emacs, since last night (with  
> jemalloc's redzone code enabled) on a two-day-old -current build, and  
> after many invocations of firefox and emacs, with serious attempts to  
> make firefox use lots of memory, Xorg's, memory usage has stabilized  
> at ~75 MB mapped, and ~35 MB resident.

what seems to be common with those of us seeing leakage is multiple
windows and many tabs.  i standardly have three windows each with
six to ten tabs.

randy